Dispersive liquid-liquid microextraction as a preconcentration alternative to increase ETAAS sensitivity in the analysis of molybdenum in bovine meat and pasture samples

Analysis of Polycyclic Aromatic Hydrocarbons in Water Samples Using Deep Eutectic Solvent as a Dispersant in Dispersive Liquid–Liquid Microextraction Based on the Solidification of Floating Organic Droplet

“…Sample preparation is usually necessary when analyzing analytes in water samples; this can pre-concentrate the analytes and reduce the matrix effect [10][11][12]. In recent years, analytical researchers have attempted to develop a variety of methods for the preparation of water samples.…”

Simultaneous determination of lead and copper in Polygonatum kingianum by ICP OES combined with natural deep eutectic solvent-based magnetic dispersive micro solid phase extraction

“…Cu is a component of many important enzymes in the body, but excess Cu can induce diarrhea, nausea, vomiting, cirrhosis of the liver, anemia and other diseases. 3 At present, the atomic spectrometric analysis methods used in the determination of metal elements include inductively coupled plasma optical emission spectrometry (ICP OES), 4,5 inductively coupled plasma mass spectrometry (ICP-MS), 6,7 ame atomic absorption spectrometry (FAAS), 8,9 graphite furnace atomic absorption spectrometry (GFAAS), 10,11 electrothermal atomic absorption spectrometry (ETAAS) 12,13 and so on. However, due to the complexity of the sample matrix and the difficulty of detecting trace contaminant elements, the combination of advanced sample separation and preconcentration methods and atomic spectroscopy is a more effective strategy for the analysis of trace elements.…”